1 files changed, 39 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TClientScript.php b/framework/Web/UI/WebControls/TClientScript.php
index 23aa1425..020b44b8 100644
--- a/framework/Web/UI/WebControls/TClientScript.php
+++ b/framework/Web/UI/WebControls/TClientScript.php
@@ -22,6 +22,11 @@
  * <com:TClientScript UsingPradoScripts="effects, rico" />
  * </code>
  * 
+ * The {@link setPreRenderControlTypes PreRenderControlTypes} property can
+ * be used to specify that controls type/class names that should pre-render itself
+ * even though they may not be rendered on the page. This is useful to publish
+ * controls that require assets and is only visible after a callback response.
+ * 
  * @TODO May be use it to include stylesheets as well.
  *
  * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
@@ -54,6 +59,23 @@ class TClientScript extends TControl
 	}
 	
 	/**
+	 * @param string comma delimited list of controls that wish to be prerendered 
+	 * so as to publish its assets.
+	 */
+	public function setPreRenderControlTypes($value)
+	{
+		$this->setViewState('PreRenderControls', $value);
+	}
+	
+	/**
+	 * @return string comma delimited list of controls types that require prerendering.
+	 */
+	public function getPreRenderControlTypes()
+	{
+		return $this->getViewState('PreRenderControls', '');
+	}
+	
+	/**
 	 * Calls the client script manager to add each of the requested client
 	 * script libraries.
 	 * @param mixed event parameter
@@ -69,6 +91,23 @@ class TClientScript extends TControl
 			if(strlen($script) > 0)
 				$cs->registerPradoScript($script);
 		}
+		$this->preRenderControls($param);
+	}
+	
+	/**
+	 * PreRender other controls to allow them to publish their assets. Useful
+	 * when callback response components that require assets to be present on the page.
+	 * @param mixed event paramater
+	 */
+	protected function preRenderControls($param)
+	{
+		$types = preg_split('/,|\s+/', $this->getPreRenderControlTypes());
+		foreach($types as $type)
+		{
+			$control = Prado::createComponent($type);
+			$control->setPage($this->getPage());
+			$control->onPreRender($param);
+		}		
 	}
 }